Recent content by Donald Jasby

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    Tracking Fusion Progress and Performance Gains

    Re: KSTAR post How much fusion power (ie., neutron production) did this so-called “fusion reactor” actually generate during its 70-sec discharges? Apparently ZERO. No neutrons are mentioned. And neither is there any mention of density, temperature, confinement time or anything at all...
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    Tracking Fusion Progress and Performance Gains

    Re: mfb comment With regard to W7-X, I was not referring to tritium, but rather to deuterium. W7 -X has reported no D-D neutrons. (And neither have most stellerators.) They may have used deuterium and produced embarrasingly low neutron output.
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    Tracking Fusion Progress and Performance Gains

    Fusion device performance is measured by the “confinement triple product” n*tau*Ti , and by fusion energy gain Q = fusion power/ heating power for MCF, or Q = (fusion energy)/ (injected energy on target) for ICF. As for MCF, there has been zero increase in the triple product or Q since the...
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    When will JET switch to DT fuel and what is the latest news on the ST40 tokamak?

    You are right about the reason why Crowley and the JET project do not want to use tritium. And there are two additional reasons: * The JET hierarchy is afraid that they cannot replicate the D-T results achieved 20 years ago. * JET no longer has the staff to deal with complicated and hazardous...
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    When will JET switch to DT fuel and what is the latest news on the ST40 tokamak?

    Every JET 5-year program since 2000 has planned to perform experiments with 50-50 D-T fuel, but they have always been postponed. JET cannot even replicate the fusion results that it reported 20 years ago, which form much of the basis of projected ITER performance. This refusal to use fusion...
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